New Downpipe & Resonator
#1
08-02-2011, 12:35 PM
Join Date: Apr 2011
Location: Seattle
Posts: 6,074
New Downpipe & Resonator
I took the Monte to my friend's shop today and had the downpipe and resonator replaced. What a difference it made. No more erratic shifting, no more random misfire at idle (that wasn't thowing a code) and no more rotten egg smell. I replaced the downpipe with a Magnaflow 23405 which eliminated the u-bend and I replaced the resonator with a Magnaflow 120405 glasspack which offers a bit less restriction. The rest of the exhaust system remained factory stock. At idle it is only slightly louder than it originally was, with a lower exhaust note. I'm sure it will get a bit louder once it is broken in, but my intention wasn't to make it loud. At cruising speed it has a nice, mellow tone but it's not so loud that you can't hear yourself think or carry on a conversation. So far I'm quite happy with the results. 
#3
08-02-2011, 12:53 PM
Join Date: Apr 2011
Location: Seattle
Posts: 6,074
My mod budget isn't that big. I just looked around for the best possible prices I could find in addition to a bit of luck...lol. I picked the parts up off ebay for about half of what they want for them at the popular retail outlets. Everything combined - downpipe, pipe flange, glasspack and gaskets - I have a total of just under $175 into the parts including shipping fees. The labor was a freebie because my friend owed me a favor. 
#4
08-02-2011, 12:55 PM
Join Date: Sep 2008
Location: Southeast PA
Posts: 25,136
we all need a third income lol.
The only thing I didn't like about the magnaflow downpipes were that they really didn't make the pipe larger in diameter. (I think)
The only thing I didn't like about the magnaflow downpipes were that they really didn't make the pipe larger in diameter. (I think)
#5
08-03-2011, 06:53 AM
Join Date: Apr 2011
Location: Seattle
Posts: 6,074
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